About🎆

Non-Mendelian inheritance is any pattern of inheritance in which traits do not segregate in accordance with Mendel's laws. These laws describe the inheritance of traits linked to single genes on chromosomes in the nucleus. In Mendelian inheritance, each parent contributes one of two possible alleles for a trait. https://en.wikipedia.org/wiki/Non-Mendelian_inheritance

Example of a pedigree for a genetic trait inherited by mitochondrial DNA in animals and humans. Offspring of the males with the trait don't inherit the trait. Offspring of the females with the trait always inherit the trait (independently from their own sex).

The Fellowship of the Ring (The Lord of the Rings #1) by J.R.R. Tolkien, Book I Prologue

Concerning Pipe-weed

There is another astonishing thing about Hobbits of old that must be mentioned, an astonishing habit: they imbibed or inhaled, through pipes of clay or wood, the smoke of the burning leaves of a herb, which they called pipe-weed or leaf, a variety probably of Nicotiana. A great deal of mystery surrounds the origin of this peculiar custom, or 'art' as the Hobbits preferred to call it. All that could be discovered about it in antiquity was put together by Meriadoc Brandybuck (later Master of Buckland), and since he and the tobacco of the Southfarthing play a part in the history that follows, his remarks in the introduction to his Herblore of the Shire may be quoted.

'This,' he says, 'is the one art that we can certainly claim to be our own invention. When Hobbits first began to smoke is not known, all the legends and family histories take it for granted; for ages folk in the Shire smoked various herbs, some fouler, some sweeter. But all accounts agree that Tobold Hornblower of Longbottom in the Southfarthing first grew the true pipe-weed in his gardens in the days of Isengrim the Second, about the year 1070 of Shire-reckoning. The best home-grown still comes from that district, especially the varieties now known as Longbottom Leaf, Old Toby, and Southern Star.

'How Old Toby came by the plant is not recorded, for to his dying day he would not tell. He knew much about herbs, but he was no traveller. It is said that in his youth he went often to Bree, though he certainly never went further from the Shire than that. It is thus quite possible that he learned of this plant in Bree, where now, at any rate, it grows well on the south slopes of the hill. The Bree-hobbits claim to have been the first actual smokers of the pipe-weed. They claim, of course, to have done everything before the people of the Shire, whom they refer to as "colonists"; but in this case their claim is, I think, likely to be true. And certainly it was from Bree that the art of smoking the genuine weed spread in the recent centuries among Dwarves and such other folk, Rangers, Wizards, or wanderers, as still passed to and fro through that ancient road-meeting. The home and centre of the an is thus to be found in the old inn of Bree, The Prancing Pony, that has been kept by the family of Butterbur from time beyond record.

'All the same, observations that I have made on my own many journeys south have convinced me that the weed itself is not native to our parts of the world, but came northward from the lower Anduin, whither it was, I suspect, originally brought over Sea by the Men of Westernesse. It grows abundantly in Gondor, and there is richer and larger than in the North, where it is never found wild, and flourishes only in warm sheltered places like Longbottom. The Men of Gondor call it sweet galenas, and esteem it only for the fragrance of its flowers. From that land it must have been carried up the Greenway during the long centuries between the coming of Elendil and our own day. But even the Dunedain of Gondor allow us this credit: Hobbits first put it into pipes. Not even the Wizards first thought of that before we did. Though one Wizard that I knew took up the art long ago, and became as skilful in it as in all other things that he put his mind to.'